Guided Practice The number of bacteria in a lab sample triples every hour. If you start with 2 bacteria in the sample, write an equation that represents the number of bacteria, y, in the sample after x hours.

A.
y=2 · x3y equals 2 times x cubed

B.
y=3 · 2xy equals 3 times 2 superscript x baseline

C.
y=2 · 3xy equals 2 times 3 superscript x baseline